230 



SUMMARY OF CURRENT RESEARCHES RELATING TO 



MICROSCOPY. 



A. Instruments, Accessories, &c* 

 - (l);Stands. 



rrrRoss' Improved No. 2 "Standard" Microscope. f — This instru- 

 ment (fig. 24) is constructed upon the basis of the original Oberhauser- 

 Hartnack model, and claims to have important improvements not 



Fig. 24. 



embodied in any other instrument. The very best workmanship has 

 been introduced throughout, and special care has been bestowed upon 



* This subdivision contains (1) Stands; (2) Eye-pieces and Objectives; (3) Illu- 

 minating and other Apparatus; (4) Photomicrography; (5) Microscopical Optica 

 and Manipulation ; (6) Miscellaneous. 



f Ross' Catalogue of Latest Improvements in Microscope Construction, 190:>. 



